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ACETYLCYCLOPENTANONE

CAS 1670-46-8
60

Safety score · 0–100

Fine

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A cyclopentanone derivative used as a fragrance ingredient with warm, sweet, and slightly nutty olfactory characteristics. Subject to IFRA guidelines for safe use levels in cosmetic products.

Acetylcyclopentanone is a ketone fragrance ingredient contributing warm, sweet notes reminiscent of honey and tonka bean. The SCCS has not identified specific concerns at typical use levels, and it is not listed in EU restriction annexes. However, as a reactive carbonyl compound, it should be used within IFRA guidelines that restrict maximum concentrations in different product types.

Skin benefits

  • Adds warm, sweet fragrance notes to cosmetic formulations

Known concerns

  • Mild skin sensitisation potential at high concentrations
  • IFRA guidelines limit use in certain cosmetic product types

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.